🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXDWG Wide Glide

Year:

2015

Model Code:

FXDWG

Platform:

Dyna

👋 Introduction

Segment:

Cruiser / Custom Motorcycle

Target Audience:

Owners, independent repair shops, and motorcycle enthusiasts seeking in-depth knowledge for maintenance and repair.

Competitors:

Other large-displacement cruiser manufacturers (e.g., Indian Motorcycle, Victory Motorcycles - now defunct, certain Japanese models with cruiser styling).

Differentiation:

The Wide Glide differentiates itself with its distinctive retro styling, including the high-rise handlebars, raked-out front end, and stripped-down appearance, appealing to riders seeking a classic chopper aesthetic.

Styling:

Iconic chopper styling, '60s/'70s inspired design cues.

Engine:

Harley-Davidson's air-cooled Twin Cam 103™ V-twin engine, known for its torque and distinctive rumble.

Handling:

Long wheelbase and raked front-end contribute to stable, relaxed touring, while still being maneuverable for its class.

Manual Value Proposition:

Essential for maintaining the performance, safety, and longevity of a premium motorcycle like the Harley-Davidson FXDWG.

📋 Manual Details

Primary Coverage:

All aspects of service, maintenance, and repair for the 2015 Harley-Davidson FXDWG Wide Glide

Estimated Page Count:

Approx. 500-700 pages (typical for comprehensive factory service manuals)

Manual Type:

Workshop Service Manual / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Twin Cam 103™ (TC103) engine overhaul, tuning, diagnostics, component replacement

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI), fuel pump, injectors, sensors, throttle body

Ignition System:

Ignition module, spark plugs, ignition coils, timing

Exhaust System:

Exhaust pipes, mufflers, heat shields, catalytic converter (if applicable), emissions controls

Transmission:

6-speed Cruise Drive® transmission, clutch, primary drive, final drive, gearbox overhaul

Chassis:

Frame, front fork assembly (including gaiters and internal components), steering head, rear suspension (shocks, swingarm)

Wheels And Tires:

Wheel bearing replacement, tire mounting and balancing, spoke tensioning (if applicable), wheel specifications

Brakes:

Front and rear brake systems, hydraulic lines, master cylinders, calipers, brake pads, rotors, bleeding procedures

Electrical System:

Wiring diagrams, battery, charging system (stator, regulator/rectifier), lighting, starting system, starter motor, relays, fuses

Instrumentation:

Speedometer, tachometer, indicators, dashboard components, CAN bus communication

Bodywork And Trim:

Fuel tank, fenders, side covers, seat, handlebars, controls, fairing (if applicable), trim pieces, cosmetic component repair/replacement

Diagnostics:

Troubleshooting charts, diagnostic trouble codes (DTCs), Harley-Davidson Digital Technician II (J1850/CAN bus) usage

Routine Maintenance:

Oil changes, filter replacements, spark plug service, air filter cleaning/replacement, lubrication, tire pressure checks

Engine Repair:

Top-end overhaul (cylinder heads, pistons), bottom-end overhaul (crankshaft, connecting rods), valve adjustments, camshaft replacement

Transmission Service:

Clutch adjustment and replacement, transmission fluid changes, gearbox disassembly and reassembly

Brake Service:

Brake pad replacement, rotor inspection and replacement, brake fluid flush and bleeding

Electrical Troubleshooting:

Fault finding using wiring diagrams, component testing, battery and charging system diagnostics

Suspension And Steering:

Fork seal replacement, shock absorber replacement, steering head bearing service

Wheel And Tire Maintenance:

Tire replacement, wheel balancing, spoke truing (for spoke wheels)

Diagnostic Procedures:

Interpreting DTCs, using diagnostic tools, troubleshooting electrical and mechanical faults

Depth Of Coverage:

Comprehensive; suitable for professional technicians and advanced DIY enthusiasts. Covers from basic maintenance to complete engine and transmission rebuilds.

Diagnostic Tools Reference:

References and procedures for using Harley-Davidson proprietary diagnostic tools and common aftermarket tools.

Torque Specifications:

Detailed torque specifications for all critical fasteners and components.

Special Tools:

Identification and usage instructions for specialized Harley-Davidson tools required for certain procedures.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely searchable text, allowing for quick keyword lookups.

Printability:

Printable, allowing users to create hard copies of specific sections or the entire manual.

Image Resolution:

High-resolution images and diagrams for clarity.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 103™

Displacement:

1690 cc (103 cubic inches)

Bore X Stroke:

3.875 in. x 4.375 in. (98.4 mm x 111.3 mm)

Compression Ratio:

9.0:1

Valve Train:

Pushrod-actuated, overhead valves with two valves per cylinder

Torque Peak:

Approximately 99 ft-lbs (134 Nm) @ 3,500 RPM (subject to variations)

Cooling System:

Air-cooled

Horsepower Peak:

Not officially stated by Harley-Davidson, typically in the 75-85 HP range (estimated).

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane (USA) / 95 RON (Europe)

Fuel Tank Capacity:

5.0 US gallons (18.9 L)

🔧 Transmission

Transmission Type:

6-speed Cruise Drive®

Clutch Type:

Hydraulic, multi-plate wet clutch

Primary Drive:

Duplex chain, 34/46 ratio

Final Drive:

Belt drive, 32/66 ratio

Gear Ratios:

1st: 9.593, 2nd: 6.650, 3rd: 4.935, 4th: 3.826, 5th: 3.194, 6th: 2.790

Transmission Fluid Type:

Harley-Davidson Syn-3 (or equivalent SAE 20W-50 motor oil)

Transmission Fluid Capacity:

Approximately 2.8 US quarts (2.6 L)

📐 Dimensions

Length:

93.3 in. (2370 mm)

Width:

35.7 in. (907 mm)

Height:

52.0 in. (1321 mm)

Wheelbase:

64.5 in. (1638 mm)

Ground Clearance:

4.7 in. (119 mm)

Rake:

34 degrees

Trail:

5.1 in. (130 mm)

Dry Weight:

640 lbs (290 kg)

Wet Weight:

675 lbs (306 kg)

Gvwr:

Not specified by manufacturer, but typical for this class is around 900-1000 lbs.

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycles are not subject to the same standardized crash testing as automobiles).

Brakes:

Standard ABS (Anti-lock Braking System) on front and rear wheels.

Lighting:

Halogen headlamp, LED tail lamp and brake lamp, amber incandescent turn signals.

Frame Construction:

Steel frame and swingarm designed for stability and rider control.

Ergonomics:

Wide handlebars and forward foot controls provide a characteristic riding posture, though rider comfort can be subjective.

💡 Technology Features

Audio System:

Not typically equipped with a factory-installed audio system on the Wide Glide model. Owners often opt for aftermarket solutions.

Gauges:

Analog speedometer, analog tachometer, LCD odometer, trip meter, clock, and indicator lights integrated into a handlebar-mounted console.

ABS:

Standard Anti-lock Braking System (ABS) for enhanced stopping power and stability.

Security:

Standard Harley-Davidson Smart Security System with key fob.

Diagnostic Port:

4-pin diagnostic connector (J1850 or CAN bus dependent on specific module) for connection to diagnostic tools.

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months, whichever comes first.

Subsequent Service:

Every 5,000 miles (8,000 km) or 12 months, whichever comes first.

Engine Oil Change Interval:

Every 5,000 miles (8,000 km) or annually, if the 5,000-mile interval is not met.

Transmission Fluid Change Interval:

Every 10,000 miles (16,000 km) or 24 months.

Primary Chain Case Fluid Change Interval:

Every 10,000 miles (16,000 km) or 24 months.

Engine Oil:

Harley-Davidson Genuine V-Twin 20W-50 or Syn-3 (Full Synthetic SAE 20W-50). Specific part numbers: 62600004 (Syn-3), 63798-99 (Genuine 20W-50).

Transmission Fluid:

Harley-Davidson Manual Transmission Lubricant (SAE 85W-140) or Syn-3 (Full Synthetic SAE 20W-50). Specific part numbers: 99890-06 (85W-140), 62600004 (Syn-3).

Primary Chain Case Lubricant:

Harley-Davidson Genuine Formula + (SAE 75W-90) or Syn-3 (Full Synthetic SAE 20W-50). Specific part numbers: 94634-98 (Formula +), 62600004 (Syn-3).

Brake Fluid:

DOT 4.

Idle Control:

Some Twin Cam engines can experience rough or inconsistent idle due to sensor issues (e.g., MAP sensor, throttle position sensor) or carbon buildup.

Cam Chain Tensioners:

Earlier Twin Cam models (pre-2007) had cam chain tensioners that could wear prematurely, leading to noise. The 2015 models use upgraded hydraulic tensioners, but monitoring is still recommended.

Oil Leaks:

Potential for minor oil leaks from primary cover, transmission housing, or rocker box gaskets over time, common in many air-cooled V-twins.

Exhaust Leaks:

Exhaust header gaskets can sometimes fail, leading to exhaust leaks and ticking noises.

Electrical Connections:

Ensuring clean and tight electrical connections is crucial, especially for sensors and lighting, to prevent intermittent faults.

📚 Vehicle History

Brand Origin:

Founded in Milwaukee, Wisconsin, USA, in 1903, Harley-Davidson is one of the oldest motorcycle manufacturers in the world.

Iconic Status:

Known for its V-twin engines, distinctive sound, and association with American culture and freedom.

Dyna Family Introduction:

The Dyna platform was introduced in 1991, evolving from earlier Harley-Davidson models. It was characterized by its frame design with the engine mounted rigidly in the frame, rather than on rubber isolators like the Touring and Softail models.

Wide Glide Development:

The Wide Glide nameplate has a history dating back to the 1980s, revived on the Dyna platform to offer a classic chopper look. Key features like the raked front-end and tall handlebars have been consistent.

2015 Updates:

For 2015, Harley-Davidson made significant updates across its lineup, including the introduction of the Project RUSHMORE features, improved ergonomics, and powertrain enhancements. The Twin Cam 103™ engine became standard on most models, including the Wide Glide.

Manufacturing Location:

Typically assembled in York, Pennsylvania, and Milwaukee, Wisconsin, USA.

Model Discontinuation:

The Harley-Davidson Dyna platform, including the Wide Glide, was discontinued after the 2017 model year, being effectively replaced by the new Softail platform starting in 2018.

🏆 Awards & Recognition

Model Specific Awards:

While the FXDWG itself might not have specific standalone awards, the Twin Cam 103™ engine and Harley-Davidson brand have consistently received accolades for their character and market appeal within the cruiser segment.

Industry Rankings:

Harley-Davidson motorcycles are consistently ranked high in customer satisfaction and brand loyalty within the cruiser and custom motorcycle markets.

Emissions Compliance:

Compliant with EPA and California ARB emissions standards for the model year.